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Changes
→ICI and Running Survey
| 110.5||A competitive marathon runner
|-
| 112.8258||A non-competitive ultramarathon runner
|-
| 117.14285711||A competitive ultramarathon runner
|}
Looking at just runners, competitive had an average ICI of 114 and non-competitive 111. Runners had an average of 103, marathon runners 111 and ultramarathon runners 114.'''Remember these are average values''' based on how respondents characterized themselves. The averages do suggest a possible correlation, but '''correlation is not causation'''. This means that having a higher ICI does not cause you to run longer distances, nor does running longer distances cause you to have a higher ICI. The values do suggest that people who run further or who are more competitive may have on average a higher ICI value, but this is only an overall average, and there is a wide overlap in value. Of course, XKCD puts this far better... http://imgs.xkcd.com/comics/correlation.png
==The meaning of ICI Values==